A) basic \[-N{{H}_{2}}\] group and acidic COOH group
B) the basic \[-\overset{+}{\mathop{N}}\,{{H}_{3}}\] group and acidic \[CO{{O}^{-}}\] group
C) basic \[N{{H}_{2}}\] and acidic \[{{H}^{+}}\] group
D) basic \[CO{{O}^{-}}\] group and acidic \[-\overset{+}{\mathop{N}}\,{{H}_{3}}\] group.
Correct Answer: D
Solution :
Zwitter ion contains both +ve and -ve charge. Proton of COOH group is transferred to the \[N{{H}_{2}}\] group. \[NH_{3}^{+}\] group is acidic since it can donate a proton and \[-\,CO{{O}^{-}}\] group is basic since it can accept a proton.
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